فرهادیان, مریم
[ 1 ] - ارزیابی ذهنی و عینی بار کار فکری اپراتورها در یک مرکز کنترل ترافیک شهری
Background and aims: Modern technology has imposed more cognitive demands than physical demands to operators in most workplaces.The Increase of cognitive demands in real working conditions can have negative effect on the mental health and performance of operators. This study was coducted with the aim of subjective and objective evaluation of operators’ mental workload in a city traf...
[ 2 ] - ارزیابی میزان کاهندگی صدای گوشی های ایرماف رایج برمبنای روش میدانی میکروفن داخل گوش در محیط های کاری
Background and aims Nominal noise reduction rating of the earmuff manufacturers can be different compared with the actual noise attenuation rating. The current study aimed to determine the actual noise reduction rate of current hearing protection devices in the real workplaces using a field microphone in real ear method (FMIRE). Methods: In this cross-sectional study, five common earmuffs we...
[ 3 ] - بررسی میزان آلودگی صدا و اثرات آن بر احساس خستگی در کارکنان شعبات بانک های دولتی شهر همدان
Background and aims: Noise pollution in bank, as environment for presentation of financial services, is very important from the viewpoint of comfort aspects. This study aims to assess noise pollution and its effects on subjective fatigue of staffs in the governmental banks. Methods: In this cross sectional study, noise equivalent levels were measured in 20 governmental banks located in Hamadan...
[ 4 ] - بررسی عوامل دموگرافیک مؤثر بر آگاهی و عملکرد بهداشت قاعدگی دختران دبیرستانی شهر همدان در سال 94-1393
Introduction: Puberty is a prominent feature of teenage period whichis associated with sudden and unexpected onset of symptoms such as menstruation or menarche. Due to the importance of the health of girls today, which in fact is an investment to achieve personal and social health, the present study was aimed to determine effective demographic factorson menstrual health knowledge and practice...
[ 5 ] - تأثیر آموزش مبتنی بر مدل بزنف بر نحوۀ شروع تغذیۀ تکمیلی کودکان
Introduction: The mother has a significant role in introducing food to her child. In present study, the effect of complementary feeding introduction based on BASNEF model on the practice of primiparous mothers was investigated. Methods: This was a two groups pre&post test and quasi experimental study carried out on 160 primiparous mothers with 5 months children referred to healthcare centers i...
[ 6 ] - ارزیابی ارگونومیک پوسچر جوشکاران و آنالیز بیومکانیکی بارهای وارد بر ستون فقرات با استفاده از نرم‌افزار CATIA در شرکت انتقال گاز ایران
Introduction: Nowadays, observational methods based on video recording of work processes and its analysis by using computers software are widely used. Therefore, the aim of this study is the assessment of welder’s posture and its biomechanical analysis by using CATIA software. Methods: This research has been done on welders Iranian Gas Transmission Company. Evaluated postures, which incl...
[ 7 ] - ارزیابی فعالیت عضلات جوشکاران در پوسچرهای رایج جوشکاری در خطوط انتقال گاز
Background: Many workers, especially welders, have awkward postures during their working hours. Evaluating such kind of postures is done with the aim of corrective actions. Therefore, the present study was conducted to evaluate the activity of welder's muscles in common welding postures working on gas transmission pipelines. Methods: This cross-sectional descriptive-analytical study was perfor...
[ 8 ] - ارزیابی اثربخشی مداخلۀ ارگونومیک ایستگاه کار بر دردهای اسکلتی ـ عضلانی در گروهی از کارکنان اداری
Background: The working station has a major impact on the musculoskeletal disorders, therefore a considerable attention to working station staff is of importance. The aim of this study was to investigate the effect of working station on musculoskeletal disorders among administrative staff. Methods: 30 administrative staff participated in this analytical descriptive study. Data was collected us...
[ 9 ] - رابطۀ تعارض سازمانی با افسردگی در اعضای هیئت‌علمی دانشگاه علوم پزشکی همدان در سال 1396
Background: Focusing on the organizational conflict and the depression in the main trainers of an educational system, the faculty members are very necessary because the increased negative organizational conflicts lead to a lower public health. Therefore, the aim of this study was to investigate the relationship between the job depression and the organizational conflict in the faculty members. ...
[ 10 ] - بررسی شرایط ارگونومیکی کار با نمایشگرهای تصویری و ارتباط آن با احساس خستگی در دانشجویان تحصیلات تکمیلی دانشگاه علوم پزشکی همدان
Background: The use of visual monitors especially in relation to computer can cause health effects which have negative impacts on mental and physical performance of users. This study aims to determine the relation between ergonomic conditions in use of visual monitors and subjective feeling of fatigue in master science students as permanent users. Methods: In this study, 40 students in the Ham...
[ 11 ] - بررسی آلودگی صدا و آسایش آکوستیکی در کلاسهای درس دانشگاه علوم پزشکی همدان در سال 1391
Introduction: Noise pollution cause mental fatigue, concentration disturbance and learning loss in students during the training activities. This study aims to evaluate Noise pollution and the level of acoustical comfort in typical classrooms, and present treatment methods for improving acoustic comfort. Method: In cross sectional study, twenty classrooms in the seven faculty of Hamadan Univers...
[ 12 ] - The Effect of Inhalation Aromatherapy with Lavender Essence on Pain Intensity and Anxiety in Burn Patients: A Clinical Randomized Trial
Introduction: Pain is one of the common problems in burn patients. Inhalation aromatherapy is one of the nurses' methods for pain management. However, there is not much information available about the effect of these methods on pain in burn patients. This study aimed to evaluate the effect of inhalation aromatherapy with Lavender essence on the pain intensity in burn patients. Methods: The ...
[ 13 ] - Fast and Sensitive Determination of Acetic Anhydride in the Air Using Hollow Fiber Method
This study aimed to introduce a new method based on Hollow Fiber in order to determination of acetic anhydride (AA) in the air. Hydroxylamine hydrochloride and sodium hydroxide (1:1), were used as extraction solvent. This method was studied in the laboratory under various conditions. In order to make different concentrations of AA in the air, a standard glass chamber was used. The optimization ...
[ 14 ] - Thyroid disorder diagnosis based on Mamdani fuzzy inference system classifier
Introduction: Classification and prediction are two most important applications of statistical methods in the field of medicine. According to this note that the classical classification are provided due to the clinical symptom and do not involve the use of specialized information and knowledge. Therefore, using a classifier that can combine all this information, is necessary. The aim of this s...
[ 15 ] - Spectrophotometric analysis of crown discoloration induced by endodontic sealers and fluoride varnish as sealer after 6 months
Objectives: This study aimed to assess tooth discoloration at 6 months following the use of 5% fluoride varnish (Duraflur), AH 26, zinc oxide eugenol (ZOE)-based sealer and mineral trioxide aggregate (MTA)-based sealer in extracted premolars. Materials and Methods: In this in vitro, experimental study, 75 freshly-extracted human premolars with completely formed roots underwent root canal treat...
[ 16 ] - Development of a Method Based on the Needle-trap Microextraction Filled with Hydroxyapatite and Polyaniline Nanocomposite for Determination of Volatile Organic Compounds in the Air
In this study, the efficiency of packed needle trap with hydroxyapatite/polyaniline (NTD-HAP/PA) nanocomposite was assessed in air sampling and analysis of a hazardous group of VOCs such as benzene, toluene, ethylbenzene and xylenes. The effects of main parameters, including desorption temperature and time, were evaluated on the performance and carryover of prepared NTDs. Moreover, the repeatab...
[ 17 ] - Comparison of Ordinal Response Modeling Methods like Decision Trees, Ordinal Forest and L1 Penalized Continuation Ratio Regression in High Dimensional Data
Background: Response variables in most medical and health-related research have an ordinal nature. Conventional modeling methods assume predictor variables to be independent, and consider a large number of samples (n) compared to the number of covariates (p). Therefore, it is not possible to use conventional models for high dimensional genetic data in which p > n. The present study compared th...
[ 18 ] - The effect of curcumin in the recovery of severe traumatic brain injury: a double-blind randomized controlled trial
Background: Traumatic brain injury is one of the most important causes of death in trauma patients among the different types of trauma worldwide. In this study, the effect of curcumin on the outcome of severe traumatic brain injury,. Methods: This was a double-blind and paralleled randomized controlled study that was conducted on 128 patients aged 18 to 70 with severe brain trauma. Patients we...
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